baber/WOPTO huggingface dataset:
Patent GB-148977-A (GB)
Title: Device for adjusting the degree of coupling in sound receiving apparatus
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,977. Signal Ges. Aug. 16, 1918, [Convention date]. Subaqueous audible signals.-In a receiving- apparatus comprising a diaphragm and an oscillatory detector such as an inertia microphone, these two structures are coupled by means of an amplifying or diminishing lever. Suppose that a particular microphone has been evolved which gives the most favourable degree of coupling when fastened direct to a particular diaphragm, as shown in Fig. 1; then by the use of a lever the same microphone may be used with a larger or smaller diaphragm, as shown in Figs. 2 and 3, without sacrificing the optimum coupling effect. The mass m3, Fig. 1, consisting of that part of the microphone which is carried by its diaphragm e2, should be equal to or less than the mass m2, consisting of the effective mass of the main diaphragm e1 and of the water which moves with it and of the part of the microphone which is rigidly attached to it. The same rule should be observed in the arrangements shown in Figs. 2 and 3, but in applying the rule to these cases the mass of that part of the microphone which is fixed to the lever must be multiplied by the square of the transformation ratio. The levers should be rigid and pivotless, being reduced in cross-section at the bending-point.
Patent GB-319859-A (GB)
Title: Improvements in pipe joints
IPC: F16L17/04
Filed: 1928-07-18
Abstract: 319,859. Gill, A. S., and Cohen, Sons, & Co., Ltd., G. July 18, 1928. Joints with packing operated by fluid pressure and with divided sleeve; couplings, disconnectible. -Fluid-tightness between two pipes a, a is secured by a rubber &c. ring c which is of substantially triangular section with a concave inner surface and is adapted to fit into triangular recesses in the two pipe ends. As shown in Fig. 1 the recesses are formed by metal rings b, having inclined inner and outer surfaces, which are shrunk upon the pipe ends, the said outer surfaces coacting with similar surfaces in a twopart housing d which draws the ends of the pipes together. The two parts of the housing may be connected by bolts e, or, alternatively, the parts may be hinged at one side d<1>, Fig. 5, and connected at the other side by a pivoted latch d<4> as shown. Several modified constructions of pipe ends, Figs. 3 and 4, are described.
Patent GB-1042634-A (GB)
Title: Diazepine and thiazepine compounds
IPC: C07D243/38
Filed: 1963-05-24
Abstract: Compounds (some of which are novel) of the general formula <FORM:1042634/C2/1> (wherein -Z- represents -S-, -SO- or -(N-R6)-, R6 being hydrogen, a C1-5 alkyl or C2- 5 alkenyl group, R2 and R3, which may be the same or different, represent hydrogen atoms, C1- 5 alkyl, C2- 5 alkenyl or amino groups, mono-or di-alkylamino or mono- or di-alkylaminoalkyl groups in which the alkyl groups each contain 1-3 carbon atoms, or monocyclic aryl or aralkyl groups optionally substituted with halogen atoms or OH, CF3 or C1- 3 alkyl, alkoxy or alkymercapto groups, or R2 and R3 together with the adjacent nitrogen atom form a monocyclic alkyleneimino radical optionally containing further O-, S- or N-hetero-atoms, the last of which carries a hydrogen atom or an alkyl, hydroxyalkyl or alkoxyalkyl group of up to 3 carbon atoms, and R4 and R5, which may be the same or different, represent hydrogen or halogen atoms or OH, CF3 or C1- 3 alkyl, alkoxy or alkylmercapto groups) are prepared by (a) treating a reaction mixture containing nitrilium or imonium cations of the general formulae <FORM:1042634/C2/2> (wherein -Z- represents -S-, -SO- or -(N-R6)-, R6 being hydrogen, a C1- 5 alkyl or C2- 5 alkenyl group or a protecting group) with ammonia or an amine (R2NHR3), or (b) cyclizing an amide or thioamide of the general formula <FORM:1042634/C2/3> (wherein R represents S or O, and Z has the same meaning as Z1 in (a)), and in either case subsequently removing the protecting group R6 if present.  When R2 and/or R3 in the products are hydrogen, they may be replaced by other R2/R3 values by the action of reactive esters of compounds R2OH or R3OH.  Similarly an -NH- group as -Z- may be reacted with a reactive ester of R1OH.  When -Z- is -S- it may be oxidized to -SO-.  The bases obtained may be converted to acid addition salts or, when tertiary, to quaternary ammonium derivatives.  Amides and thioamides of the last general formula above are prepared by reducing the corresponding nitro compounds.
Patent GB-453075-A (GB)
Title: Improvements in systems for supplying electric power and heating-steam
IPC: F01D15/02
Filed: 1935-07-24
Abstract: 453,075. Electric power and heating systems. CHANCE BROS. & CO., Ltd., WISE, A. J. W., and HALLETT, L. B. H., Glass Works, Smethwick, Birmingham. July 24, 1935, No. 21015. [Class 110 (iii)] [See also Group XXXV] Steam generated at a passes to a turbine band is exhausted to a steam heating system c. The turbine b drives a dynamo l. If the system c requires more steam than is provided by the turbine exhaust, which varies with the load on the dynamo l, the exhaust pressure falls and an automatic valve e opens a byepass line d. If the system c requires less steam, the exhaust pressure rises and an automatic valve g opens an exhaust to atmosphere f. In order to avoid losing steam to atmosphere, an internal-combustion motor n is provided which drives a second dynamo m and is arranged to share the total load with the turbine b so that the turbine exhaust shall not exceed the requirements of the system c. It is brought into action when the flow in the byepass d falls below a set value and is cut out when that flow reaches a higher set value. The flow is measured by the mercury levels in a U-tube h connected to the byepass on opposite sides of a throat i. At the set low value of the flow, contacts j are closed and a relay r, s is energized to close the circuit of a heating coil of a time-lag switch t. This energizes relay coil u and closes contacts w, z. The circuit of coil x being closed at w, contact y is closed and the dynamo m is run as a motor with current from battery o until the engine n starts. Contact z cuts out switch t and the engine is kept in operation until, owing to a larger fall in pressure at the orifice due to an increased byepass flow, contacts k are closed by the mercury and coil p is energized to open the circuit of coil x at contact q.
Patent GB-1448160-A (GB)
Title: Closure means for a rotatable pressure vessel
IPC: F16J13/02
Filed: 1974-05-13
Abstract: 1448160 Closure for pressure vessel P KUNZ 13 May 1974 [18 May 1973] 21131/74 Heading F2P  Closure means for the opening of a rotatably mounted pressure vessel comprises an inwardly opening lid 2 connected by a piston-rod 8 to a piston 7 which is situated in a cylinder 6, which extends into the pressure vessel 1, and a locking pawl 3, pivotally mounted by a pin 4 on the cylinder 6. Attached to the lid 2 is a collar 5 with which the pawl 3 can engage thus locking the lid 2 in the open position. The pawl 3, has a weight attached to it so that the position of the centre of gravity of the pawl results in the pawl pivoting and engaging with the collar 5, when the pressure vessel is suitably rotated. To effect closure of the vessel, the cylinder 6, on the opposite side of the piston to the pistonrod 8 is pressurized thus moving the piston, piston-rod and lid in the closing direction, the lid bearing upon the rim defining the opening of the pressure vessel 1. In use the vessel is rotated in a counter-clockwise direction about an axis 9 with the lid closed. At the end of the operation, pressure in the vessel and behind the piston 7 is released so that when the vessel reaches the Fig. 1 position the lid 2 opens under the action of gravity. As the vessel continues to rotate the locking pawl pivots about the pin 4 due to the influence of gravity and engages with the collar 5. The locking pawl 3 remains engaged with the collar 5, at first due to the effect of gravity and then due to friction between the collar 5 and the hook of the locking pawl 3, which is intensified by the weight of the lid 2. As the vessel rotates into an upright position, the pawl pivots due to the influence of gravity and disengages with the collar 5, and the lid 2 remains in the open position due to the action of its own weight. A second locking pawl may be incorporated being symmetrically disposed to the locking pawl 3 about the axis of symmetry of the pressure vessel 1. This would ensure that the lid 2 is released by the locking pawls only when the axis of symmetry of the pressure vessel 1 is almost in the vertical position. In addition, an arresting device may be incorporated which arrests the locking pawl 3 either in the open position (Fig. 1) or in the engaged position (Fig. 2) (not shown) for a particular time interval.
Patent GB-302879-A (GB)
Title: Improvements in or relating to distributing mechanism for typographical composing and line casting machines
IPC: B41B11/18
Filed: 1928-07-21
Abstract: 302,879. Hart, H., (Mergenthaler Linotype Co.). July 21, 1928. Distributing matrices; magazines.-Relates to machines of the kind having interchangeable magazine-entrances and distributor-bars for handling matrix founts which differ in the size and number of their characters, and particularly to the arrangement described in Specification 230,731, wherein the magazine-entrances are arranged back to back in inverted relation, and are rotatably mounted, so as to be reversible for interchange. According to the invention, the distributor-bars are operatively connected to the hand-lever employed for rotating the entrances, so as to be interchanged simultaneously therewith. The two distributor-bars B<1>, C<1> are pivotally mounted by means of bracket-plates on the ends of the two upper conveying-serews H, so that either bar may be rocked into operative position. Each bar is connected by a curved link J<1> to a sliding bar J, which is connected by lever-arms K<1>, K<2> to a link K<3>, guided in a bracket 0', and having a stud k at its lower end. The link K<3> can be operated from the hand-lever G which serves for rocking the magazine-entrance frame E. For this purpose, a latch-bar, sliding on the hand-lever, is provided with a hook G' for engaging the stud k on the link K<3>, and with a pin G<5>, which can be grasped simultaneously with the handle G<6> of the hand-lever. Indicator plates, bearing indicators corresponding to the different founts, are secured to the top and one side of the distributor-bar C<1>, to show which bar is in use. The magazine-entrances are provided with a similar indicating-device in the form of a vertically sliding plate P<5>, bearing indicating- numbers, which are displayed through an aperture. The plate P<5> is operated by a spring- controlled rod P<1> and a stud on one side of the rotatable block D<2> that carries the entrances. Means are provided for preventing the accidental unlocking of the entrances when the frame E is swung downwards for inspection of the magazines. This comprises a bail R, hinged to the frame E, and having a depending arm R' provided with a stud R<5>. When the bail R is depressed at the same time that the frame E is rocked, the stud R<5> engages a recess O<4> in a fixed bracket O<3>, so as to arrest the frame E before the rotatable block D<2> is unlatched.
Patent GB-613922-A (GB)
Title: Improved means for selectively predetermining the effective periods of operation of apparatus operated by electrical energy
IPC: A47J37/08
Filed: 1945-08-20
Abstract: 613,922. Toasters. LOWEN, C. G., and TELCO, P. Aug. 20, 1945. No. 21264. [Class 28 (i)] [Also in Group XXXVII] The duration of consumption of electrical energy by apparatus, such as an electric toaster, is controlled by a timeswitch which comprises a digitallyoperated selector dial 1, a switch moved to the circuit-closed position during the setting of the selector and timing means loaded variably by the selector to break the circuit at the end of the predetermined time. Rotation of the dial 1 winds up a spring 4 and lowers a rack-bar 7, which swings a forked lever 22 downwards and closes supply contacts 24 by means of a roller 23. When the dial is released and the spring 4 slowly unwinds, the bar 7 is raised and a pin 7a thereon eventually engages the upper fork of lever 22 to open the contacts 24, which are made and broken with a snap-action imparted by a dead-centre spring 20. The lever 22 also tilts bread platforms 12 by means of push-rods 15, so as to expose the toast at the end of the predetermined time. The platforms 12 pivot between heating elements 26. Specification 536,752, [Group XXXVII], is referred to.
Patent GB-877862-A (GB)
Title: Polymerisation catalysts for certain unsaturated organic compounds
IPC: C08F4/06
Filed: 1959-06-22
Abstract: A process for polymerizing unsaturated organic compounds with a boiling point above 100 DEG C., having at least one carbon to carbon double bond and excluding vinyl acetate comprises using as catalyst a system comprising (1) an organic peroxy compound; (2) a tertiary amine or quaternary base and (3) a soluble metal compound.  The polymerizable compound preferably contains at least two ethylenically unsaturated groups per molecule such as diglycol dimethacrylate, diallyl phthalate, triallyl cyanurate, diallyl diglycolate or 2 : 4-diallyl-6-amino-5-triazine and this compound may be copolymerized with a compound containing only one ethylenically unsaturated group such as styrene or methyl methacrylate.  Polymerization may be effected in stages up to 100 DEG C. to form a thermoplastic sheet which is converted at 140 DEG -160 DEG C. to a substantially non-thermoplastic material.  The peroxy compound may be a symmetrical diacyl peroxide such as lauroyl or benzoyl peroxide, a terpene peroxide such as ascaridol or an alkyl or dialkyl peroxide such as cumene hydroperoxide or di-(tertiary butyl)-peroxide.  The base may be octa or hexadecyl trimethyl ammonium hydroxide, trimethylamine, N-diethyl-ethanolamine or ethyl morpholine.  The soluble metal compounds may be chlorides, bromides or naphthenates of aluminium, titanium, manganese, copper, zinc and tin.  In specific examples cumene hydroperoxide, aluminium chloride in carbon tetrachloride, and mixed octadecyl and hexadecyl trimethyl ammonium hydroxide in isopropanol is used as the catalyst.
Patent GB-430281-A (GB)
Title: Improvements relating to variable-speed gears
IPC: F16H61/02
Filed: 1934-07-20
Abstract: 430,281. Variable speed gearing. LUTZ, A. C., 4735, S. Winchester Avenue, Chicago, U.S.A. July 20, 1934, No. 21305. [Class 80 (ii)] In an automatic epicyclic gear of the kind in which centrifugal masses 25 act in one direction only, to take up backlash in the train and thereby produce a variable internal friction, the masses are directly attached to certain of the gears. The masses 25, which are curved about the axis of the aligned driving and driven shafts 10, 15, are secured to pinions 23, freely mounted on a planet-spindle 12 secured to a driving arm 11 Pinions 16, fixed to the arm 11 are drivingly connected with the pinions 23 through pinions 32, 33 secured to a shaft 30, freely journalled in a planet-wheel 22 which meshes with a driven wheel 20. The masses 25 tend to produce relative rotation between the connected pinions 23, 16, the resulting internal friction in the train 16, 32, 33, 23 restraining the planetwheel 22, and finally yielding solid drive. In Figs. 3 and 4, not shown, the arm 11 is free on the driven shaft 15, the planet-spindle 12 carrying pinions meshing with a driving sun-wheel. In Fig. 6, the driving shaft 70 freely carries two arms 72, 73, and has keyed to it two sun-wheels 78, 85. Centrifugal masses 76 secured to pinions 77, produce internal friction in the train 81, 82, 84, 85, thereby restraining the final planet-pinion 90, which drives a sun-wheel 87 keyed to a driven shaft 71.
Patent GB-1070057-A (GB)
Title: Improvements in lintels
IPC: E04C3/02
Filed: 1965-05-21
Abstract: 1,070,057. Lintels. I. WILLIAMS. May 21, 1965, No. 21525/65. Addition to 869,697. Heading E1K. A lintel of T-section comprises two angles 1, 2 welded together by the edges of two flanges, one edge 1a being bent, to provide a channel between the flanges which are held spaced by distance pieces 5. Wire mesh 7 for keying plaster may be welded to the angle 2.
Patent GB-373483-A (GB)
Title: Improvements in or relating to winding apparatus for motion picture film
IPC: G03B21/43
Filed: 1931-07-28
Abstract: 373,483. Kinematograph apparatus. KODAK, Ltd., Kingsway, London.-(Assignees of Wittel, O. ; 343, State Street, Rochester, New York, U.S.A.) July 28, 1931, No. 21533. Convention date, Aug. 2, 1930. [Class 97 (i).] The two flanges of film reels are of different diameters, and members are provided on the apparatus co-operating with one of the flanges to determine the manner in which the reel may be mounted. As shown in Fig. 1, the flange 13 of each reel has a smaller diameter than the flange 12, and pins 17, 18 are spaced from the upper spindle 9 at such distances that they will permit the flange 13 to pass between them but not the flange 12. The openings in the flange 12, 13 are, respectively, square and circular, and the reel on the lower spindle 15 has an enlargement 16 forming a clutch connection; the reel may thus only be mounted on the spindle 15 with the flange 12 towards the plate 8. The pins 17, 18 may be replaced by a cylindrical recess in the plate 8. In a modification, Fig. 5, the pins may be replaced by studs 41 projecting from a fixed plate 40 and carrying rollers 43 having shoulders 45 which permit only the smaller flange 48 to be passed between them. A removable cover-plate 50 for the reel may have a projection 51 to retain the reel in position, and the larger flange 47 may have a non-circular hole to engage a correspondingly shaped driving spindle.
Patent GB-731948-A (GB)
Title: Improvements in and relating to milk cooling appliances
IPC: A01J9/04
Filed: 1952-08-27
Abstract: 731,948. Cooling milk. GASCOIGNES (READING), Ltd., and KINGSTON, J. A. Nov. 26, 1953 [Aug. 27, 1952], No. 21558/52. Classes 29 and 64 (3). Relates to apparatus for cooling milk in a churn C in which the force of cooling water supplied from a pipe 14 to an annular perforated channel member B resting on the churn neck is utilized to stir the milk, the water running down the outside of the churn from apertures 17 in the channel member. According to the invention, a rocking motion is imparted to the stirrer. Pivoted at 5 on the member B is a rocking unit A comprising a bucket 1 divided into two parts 1a, 1b by a partition 3, a trough 2 divided into two parts 2a, 2b by a partition 4 and concentric feed and return tubes a<SP>1</SP>, bl and a<SP>2</SP>, b<SP>2</SP> respectively connecting the parts la, 2a and 1b, 2b. In the position shown, pipe 14 discharges water into part 1b whence it flows through tubes a2, b2 to part 2b. This weights unit A and causes it to swing in the direction of the arrow, the water in part 2b spilling through a slot 16 into the channel member B. The part 1a then receives water from pipe 14 to induce rocking in the other direction. The concentric tubes are joined by a web 7. In a modification (Figs. 3 and 4, not shown), the concentric feed and return tubes are replaced by U-tubes.
Patent GB-392161-A (GB)
Title: Projection screens
IPC: G03B21/60
Filed: 1931-07-29
Abstract: 392,161. Projection screens. KANOLT, C. W., 450, 4th Avenue, New York, U.S.A. July 29, 1931, No. 21685. Convention date, Aug. 8, 1930. [Class 97 (i).] A projection screen for stereoscopic pictures comprises areas of curved specular reflecting or refracting elements corresponding in arrangement with elements of the picture to be projected so as to permit registration of the elements of an image projected from the picture with the areas of the screen. The pictures to be projected may be such as present stereoscopic effects horizontally, as described in Specification 389,123, or such as present different aspects both vertically and horizontally. As shown in Figs. 5 and 6, the screen 3 carries a large number of small areas 4, either concave or convex, which may be of polished white metal, and the interspaces between which are blackened. The observer's left eye 6, Fig. 5, sees a portion of the projected image at 8, and with his right eye 7 a portion of the projected image reflected from a slightly different position 9. Concave reflectors are employed if convex ribbed mirrors were employed in the production of the picture, and convex reflectors if concave grooved mirrors were employed. The screen may be curved as a whole in one or two directions. The small areas 4 may comprise cylindrical lenses in the form of ribs or may,comprise lenses curved in two directions.
Patent GB-123706-A (GB)
Title: Improvements in or relating to the Lubrication of Shackle Bolts for Vehicles.
Inventor: SHARDLOW ARTHUR THOMAS
IPC: F16F1/24
Filed: 1918-12-30
Abstract: 123,706. Shardlow, A. T. Dec. 30, 1918. Oil-hole closures.-A spring shackle bolt for motor vehicles &c. is lubricated by oil supplied to passages P, F through a hole in the head closed by a spring-preseed ball A mounted in a screwed cap C. A spigot G formed in the bolt or made as a separate part fits into the end of the cap C. The spring may abut against a grub screw inserted in the open end of the cap.
Patent GB-314699-A (GB)
Title: Improvements in or relating to holding devices for facilitating the cutting or carving of meat and the like
IPC: A22C17/02
Filed: 1928-07-26
Abstract: 314,699. Cheney, L. N. July 26, 1928. Holders for hand cutting.-A device for holding meat during carving comprises a base 1 shaped to fit into a meat dish, a serrated bar or bars 5 which engages the underside of the :meat, and vertically adjustable gripping members 6 which are supported from upstanding brackets 3, 4 on one side of the base. The portions 3 of the brackets are formed integral with the cross bars 2 which carry the toothed bar 5 and the members 6 are carried on rods 7 the lower ends of which have cranked plates 8 slotted at 9 to slide over the members 4. The members 6 are perforated at 10 to receive skewers 11. Holes 12 permit the device to be secured to a table. Means may be provided for clamping the members 7, 8 in their adjusted positions.
Patent GB-225295-A (GB)
Title: Process of and apparatus for the reduction of metal oxides with continuous regeneration of the reducing gas employed
IPC: C22B5/12
Filed: 1923-08-30
Abstract: 225,295. Constant, G., and Bruzac, A. Aug. 30, 1923. Addition to 202.970. Dry processes of extracting metals.-In a process of the reduction of ores with continuous regeneration of the reducing gas as described in the parent Specification the production of the initial charge of reducing gas and the regeneration of the oxidized residual gas are effected in gas producers of the ash-melting type. In order to dispense with intermittent of the producers they may take the form of receivers 1 heated by gaseous combustion in surrounding flues 3 and having inlets 13 for the carbon dioxide and outlets 14 for the carbon monoxide, the melted slag escaping through tap-holes 16, and the regeneration of the residual gas being continuous. Alternatively the fuel in the receiver may be heated by the passage therethrough of a highly heated neutral gas some of the receivers in this case being reheated while others are in the reaction phase.
Patent GB-479903-A (GB)
Title: Improvements in fuel for internal combustion engines of the compression-ignition type
IPC: C10L1/18
Filed: 1936-08-10
Abstract: In fuel for compression-ignition engines is dissolved a zinc-fatty acid compound; on combustion an impalpable residue of zinc oxide is produced which assists lubrication and prevents corrosion. 2,0 per cent of zinc oleate, stearate, or naphthenate is suitable. Specification 395,192 is referred to.  The Provisional Specification states that zinc oleate, linoleate, or ricinoleate, or other soluble organic compound of zinc may be used.